Initial commit
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Jakub Skokan
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d6c7f1ae87
95 changed files with 31975 additions and 0 deletions
166
src/font.cpp
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166
src/font.cpp
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <GL/gl.h>
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#include "font.h"
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const char *Font::chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!-.:";
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const unsigned char Font::fontData[] = {
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0x00, 0x38, 0x6C, 0xC6, 0xC6, 0xFE, 0xC6, 0xC6, 0x00, 0xFC, 0xC6, 0xC6, 0xFC, 0xC6, 0xC6, 0xFC,
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0x00, 0x3C, 0x66, 0xC0, 0xC0, 0xC0, 0x66, 0x3C, 0x00, 0xF8, 0xCC, 0xC6, 0xC6, 0xC6, 0xCC, 0xF8,
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0x00, 0xFE, 0xC0, 0xC0, 0xFC, 0xC0, 0xC0, 0xFE, 0x00, 0xFE, 0xC0, 0xC0, 0xFC, 0xC0, 0xC0, 0xC0,
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0x00, 0x3E, 0x60, 0xC0, 0xCE, 0xC6, 0x66, 0x3E, 0x00, 0xC6, 0xC6, 0xC6, 0xFE, 0xC6, 0xC6, 0xC6,
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0x00, 0xFC, 0x30, 0x30, 0x30, 0x30, 0x30, 0xFC, 0x00, 0x1E, 0x06, 0x06, 0x06, 0xC6, 0xC6, 0x7C,
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0x00, 0xC6, 0xCC, 0xD8, 0xF0, 0xF8, 0xDC, 0xCE, 0x00, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x7E,
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0x00, 0xC6, 0xEE, 0xFE, 0xFE, 0xD6, 0xC6, 0xC6, 0x00, 0xC6, 0xE6, 0xF6, 0xFE, 0xDE, 0xCE, 0xC6,
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0x00, 0x7C, 0xC6, 0xC6, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, 0xFC, 0xC6, 0xC6, 0xC6, 0xFC, 0xC0, 0xC0,
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0x00, 0x7C, 0xC6, 0xC6, 0xC6, 0xDE, 0xCC, 0x7A, 0x00, 0xFC, 0xC6, 0xC6, 0xCE, 0xF8, 0xDC, 0xCE,
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0x00, 0x78, 0xCC, 0xC0, 0x7C, 0x06, 0xC6, 0x7C, 0x00, 0xF8, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
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0x00, 0xC6, 0xC6, 0xC6, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, 0xC6, 0xC6, 0xC6, 0xEE, 0x7C, 0x38, 0x10,
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0x00, 0xC6, 0xC6, 0xD6, 0xFE, 0xFE, 0xEE, 0xC6, 0x00, 0xC6, 0xEE, 0x7C, 0x38, 0x7C, 0xEE, 0xC6,
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0x00, 0xCC, 0xCC, 0xCC, 0x78, 0x30, 0x30, 0x30, 0x00, 0xFE, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xFE,
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0x00, 0x38, 0x4C, 0xC6, 0xC6, 0xC6, 0x64, 0x38, 0x00, 0x30, 0x70, 0x30, 0x30, 0x30, 0x30, 0xFC,
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0x00, 0x7C, 0xC6, 0x0E, 0x3C, 0x78, 0xE0, 0xFE, 0x00, 0x7E, 0x0C, 0x18, 0x3C, 0x06, 0xC6, 0x7C,
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0x00, 0x1C, 0x3C, 0x6C, 0xCC, 0xFE, 0x0C, 0x0C, 0x00, 0xFC, 0xC0, 0xFC, 0x06, 0x06, 0xC6, 0x7C,
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0x00, 0x3C, 0x60, 0xC0, 0xFC, 0xC6, 0xC6, 0x7C, 0x00, 0xFE, 0xC6, 0x0C, 0x18, 0x30, 0x30, 0x30,
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0x00, 0x7C, 0xC6, 0xC6, 0x7C, 0xC6, 0xC6, 0x7C, 0x00, 0x7C, 0xC6, 0xC6, 0x7E, 0x06, 0x0C, 0x78,
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0x18, 0x3C, 0x3C, 0x3C, 0x18, 0x18, 0x00, 0x18, 0x00, 0x00, 0x00, 0x7E, 0x7E, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x60, 0x60, 0x00, 0x60, 0x60, 0x00,
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0x00 };
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Font Font::instance;
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Font::Font()
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{
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}
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Font &Font::getInstance()
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{
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return instance;
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}
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int Font::init()
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{
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glGenTextures(NUM_CHARS, textures);
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if(glGetError() != GL_NO_ERROR) return -1;
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int c, i, j;
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for(c = 0; c < NUM_CHARS; c++)
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{
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unsigned int data[64];
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for(i = 0; i < 8; i++)
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{
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unsigned char temp = fontData[c * 8 + i];
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unsigned char mask = 0x80;
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for(j = 0; j < 8; j++)
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{
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data[i * 8 + j] =(temp&mask)?(0xFFFFFFFF):(0x00000000);
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mask >>= 1;
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}
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}
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glBindTexture(GL_TEXTURE_2D, textures[c]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
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if(glGetError() != GL_NO_ERROR) return -1;
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
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}
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return 0;
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}
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void Font::deinit()
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{
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glDeleteTextures(NUM_CHARS, textures);
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}
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void Font::drawChar(char c)
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{
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int i;
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if(c >= 'a' && c <= 'z') c += 'A' - 'a';
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for(i = 0; i <= NUM_CHARS; i++) if(chars[i] == c) break;
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if(i >= NUM_CHARS) return;
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glBindTexture(GL_TEXTURE_2D, textures[i]);
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glBegin(GL_TRIANGLE_STRIP);
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glTexCoord2f(0.0, 0.0);
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glVertex2f(0.0, 0.0);
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glTexCoord2f(1.0, 0.0);
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glVertex2f(1.0, 0.0);
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glTexCoord2f(0.0, 1.0);
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glVertex2f(0.0, 1.0);
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glTexCoord2f(1.0, 1.0);
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glVertex2f(1.0, 1.0);
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glEnd();
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}
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void Font::drawString(const char *str)
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{
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glPushMatrix();
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glPushMatrix();
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while(*str != '\0')
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{
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if(*str == '\n')
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{
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glPopMatrix();
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glTranslatef(0.0, 1.0, 0.0);
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glPushMatrix();
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} else
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{
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drawChar(*str);
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glTranslatef(1.0, 0.0, 0.0);
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}
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str++;
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}
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glPopMatrix();
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glPopMatrix();
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}
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void Font::printf(const char *fmt, ...)
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{
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/* based on the example code on 'man 3 vsnprintf' */
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/* Guess we need no more than 256 bytes. */
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int n, size = 256;
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char *p, *np;
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va_list ap;
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if((p = (char*)malloc(size)) == NULL) return;
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while(1)
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{
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/* Try to print in the allocated space. */
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va_start(ap, fmt);
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n = vsnprintf(p, size, fmt, ap);
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va_end(ap);
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/* If that worked, break out of the loop */
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if(n > -1 && n < size) break;
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/* Else try again with more space. */
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if(n > -1) /* glibc 2.1 */
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size = n + 1; /* precisely what is needed */
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else /* glibc 2.0 */
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size *= 2; /* twice the old size */
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if((np = (char*)realloc(p, size)) == NULL)
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{
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free(p);
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return;
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} else
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{
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p = np;
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}
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}
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drawString(p);
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free(p);
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}
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